﻿///////////////////////////////////////////////////////////////////////////////
//
//  This source is part of the  "Managed Task Framework.NET Runtime"  (MTF.NET Runtime).
//
//
//  Copyright (c) 2011, Multicore Consulting Limited (UK)
//  All rights reserved.
//  http://www.multicoreconsulting.co.uk
//
//  Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions
//  are met:
//
//  -  Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
//  -  Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in
//     the documentation and/or other materials provided with the
//     distribution.
//  -  Neither the name of Multicore Consulting Limited nor the names of
//     its contributors may be used to endorse or promote products
//     derived from this software without specific prior written
//     permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//  COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//  POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////////

using System;
using System.IO;

namespace MTFOrg.MTF.MTFRuntime
{
    /// <summary>
    /// Handles logging of exceptions.
    /// </summary>
    class ErrorLog
    {
        const string m_LogDir = "MTFOrg/MTFRuntime/Log";
        const string m_LogFile = "errors.txt";

        /// <summary>
        /// Writes details of the given exception to the log file.
        /// </summary>
        /// <param name="e">Exception to be logged</param>
        public static void Write(Exception e)
        {
            try
            {
                string fullLogDir = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "/" + m_LogDir;
                if (!Directory.Exists(fullLogDir))
                    Directory.CreateDirectory(fullLogDir);

                string fullLogFile = fullLogDir + "/" + m_LogFile;
                StreamWriter sw = File.AppendText(fullLogFile);

                sw.WriteLine(e.ToString());

                sw.Close();
            }
            catch
            {
                // Do nothing with exceptions generated by the logging process.
            }
        }
    }
}